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authorThomas Bogendoerfer <tbogendoerfer@suse.de>2019-02-19 18:57:20 +0300
committerPaul Burton <paul.burton@mips.com>2019-02-19 23:46:03 +0300
commit69a07a41d908f9df48393bbab179daded8cfab66 (patch)
tree6764897f28cee05ecd539010ce61c4138b3bfdc5 /arch/mips/include
parent2c8656204742a5e2d373972b139d0cc26ae93ff0 (diff)
downloadlinux-69a07a41d908f9df48393bbab179daded8cfab66.tar.xz
MIPS: SGI-IP27: rework HUB interrupts
This commit rearranges the HUB interrupt code by using MIPS_IRQ_CPU interrupt handling code and modern Linux IRQ framework features to get rid of global arrays. It also adds support for irq affinity setting. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/mach-ip27/irq.h12
-rw-r--r--arch/mips/include/asm/mach-ip27/mmzone.h9
-rw-r--r--arch/mips/include/asm/pci/bridge.h4
3 files changed, 8 insertions, 17 deletions
diff --git a/arch/mips/include/asm/mach-ip27/irq.h b/arch/mips/include/asm/mach-ip27/irq.h
index b0b7261ff3ad..fd91c58aaf7d 100644
--- a/arch/mips/include/asm/mach-ip27/irq.h
+++ b/arch/mips/include/asm/mach-ip27/irq.h
@@ -10,13 +10,15 @@
#ifndef __ASM_MACH_IP27_IRQ_H
#define __ASM_MACH_IP27_IRQ_H
-/*
- * A hardwired interrupt number is completely stupid for this system - a
- * large configuration might have thousands if not tenthousands of
- * interrupts.
- */
#define NR_IRQS 256
#include_next <irq.h>
+#define IP27_HUB_PEND0_IRQ (MIPS_CPU_IRQ_BASE + 2)
+#define IP27_HUB_PEND1_IRQ (MIPS_CPU_IRQ_BASE + 3)
+#define IP27_RT_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 4)
+
+#define IP27_HUB_IRQ_BASE (MIPS_CPU_IRQ_BASE + 8)
+#define IP27_HUB_IRQ_COUNT 128
+
#endif /* __ASM_MACH_IP27_IRQ_H */
diff --git a/arch/mips/include/asm/mach-ip27/mmzone.h b/arch/mips/include/asm/mach-ip27/mmzone.h
index 2ed3094dee07..1cd6a23a84f2 100644
--- a/arch/mips/include/asm/mach-ip27/mmzone.h
+++ b/arch/mips/include/asm/mach-ip27/mmzone.h
@@ -8,20 +8,11 @@
#define pa_to_nid(addr) NASID_TO_COMPACT_NODEID(NASID_GET(addr))
-#define LEVELS_PER_SLICE 128
-
-struct slice_data {
- unsigned long irq_enable_mask[2];
- int level_to_irq[LEVELS_PER_SLICE];
-};
-
struct hub_data {
kern_vars_t kern_vars;
DECLARE_BITMAP(h_bigwin_used, HUB_NUM_BIG_WINDOW);
cpumask_t h_cpus;
unsigned long slice_map;
- unsigned long irq_alloc_mask[2];
- struct slice_data slice[2];
};
struct node_data {
diff --git a/arch/mips/include/asm/pci/bridge.h b/arch/mips/include/asm/pci/bridge.h
index 0c5fe3a2d2a9..23574c27eb40 100644
--- a/arch/mips/include/asm/pci/bridge.h
+++ b/arch/mips/include/asm/pci/bridge.h
@@ -808,7 +808,6 @@ struct bridge_controller {
struct bridge_regs *base;
nasid_t nasid;
unsigned int widget_id;
- unsigned int irq_cpu;
u64 baddr;
unsigned int pci_int[8];
};
@@ -823,8 +822,7 @@ struct bridge_controller {
#define bridge_clr(bc, reg, val) \
__raw_writel(__raw_readl(&bc->base->reg) & ~(val), &bc->base->reg)
-extern void register_bridge_irq(unsigned int irq);
-extern int request_bridge_irq(struct bridge_controller *bc);
+extern int request_bridge_irq(struct bridge_controller *bc, int pin);
extern struct pci_ops bridge_pci_ops;